You can invite additional users to help manage your store. Each person gets their own login and is assigned a role that determines what they can see and do.
Go to Settings → Team and click Invite Member. Enter the person's email address and choose a role. They will receive an invitation email with a link to set up their account.
Invitations expire after 48 hours. If the link expires, you can resend it from the same page.
To remove a team member, go to Settings → Team, click the three-dot menu next to their name, and select Remove. Their account will be immediately deactivated for your store.